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	<head>
		<title>three.js webgl - postprocessing smaa</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
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	<body>
		<div id="info">
			<a href="https://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - post-processing SMAA
		</div>

		<div id="container"></div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

			import Stats from 'three/addons/libs/stats.module.js';
			import { GUI } from 'three/addons/libs/lil-gui.module.min.js';

			import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
			import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
			import { SMAAPass } from 'three/addons/postprocessing/SMAAPass.js';
			import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';

			let camera, scene, renderer, composer, stats, smaaPass;

			const params = {
				enabled: true,
				autoRotate: true

			};

			init();

			function init() {

				const container = document.getElementById( 'container' );

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				document.body.appendChild( renderer.domElement );

				stats = new Stats();
				container.appendChild( stats.dom );

				//

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.z = 300;

				scene = new THREE.Scene();

				const geometry = new THREE.BoxGeometry( 120, 120, 120 );
				const material1 = new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true } );

				const mesh1 = new THREE.Mesh( geometry, material1 );
				mesh1.position.x = - 100;
				scene.add( mesh1 );

				const texture = new THREE.TextureLoader().load( 'textures/brick_diffuse.jpg' );
				texture.anisotropy = renderer.capabilities.getMaxAnisotropy();
				texture.colorSpace = THREE.SRGBColorSpace;

				const material2 = new THREE.MeshBasicMaterial( { map: texture } );

				const mesh2 = new THREE.Mesh( geometry, material2 );
				mesh2.position.x = 100;
				scene.add( mesh2 );

				// postprocessing

				composer = new EffectComposer( renderer );
				composer.addPass( new RenderPass( scene, camera ) );

				smaaPass = new SMAAPass( window.innerWidth * renderer.getPixelRatio(), window.innerHeight * renderer.getPixelRatio() );
				composer.addPass( smaaPass );

				const outputPass = new OutputPass();
				composer.addPass( outputPass );

				window.addEventListener( 'resize', onWindowResize );

				const gui = new GUI();

				const smaaFolder = gui.addFolder( 'SMAA' );
				smaaFolder.add( params, 'enabled' );

				const sceneFolder = gui.addFolder( 'Scene' );
				sceneFolder.add( params, 'autoRotate' );

			}

			function onWindowResize() {

				const width = window.innerWidth;
				const height = window.innerHeight;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();

				renderer.setSize( width, height );
				composer.setSize( width, height );

			}

			function animate() {

				stats.begin();

				if ( params.autoRotate === true ) {

					for ( let i = 0; i < scene.children.length; i ++ ) {

						const child = scene.children[ i ];

						child.rotation.x += 0.005;
						child.rotation.y += 0.01;

					}

				}

				smaaPass.enabled = params.enabled;

				composer.render();

				stats.end();

			}

		</script>

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